i just put on some headers and i stripped my o2 sensor when taking it off, and now my check engine light is on cuz i dont have the sensor in it. so i was jw if its gunna hurt the performance of my car? and also how much is the sensor gunna run . i called autozone and they quoted me $299.00 can that be right?

 

umm any1? come on guys i know there is some smart ppl on here!

 

lol dude... what are u trying to do to ur car??!!

o2 sensors especially for the headers arent cheap, and 299 sounds about right but see if u can find somebody on here that is selling their headers along with the o2 sensor for cheaper than 299.. its possible but u gotta look.. and i would definitely not run without my o2 sensor because the computer in ur car would try to tune itself to run according to what it reads from the o2 sensor, and if its missing, imagine what the car will do...

 

ha ha well my first plan for my car was n/a cus its auto but got alot of good feedback on turbo autos so i started saving for my turbo. now i wish i never got the headers cuz i aint gunna need em once i get the turbo + i goota lay more of my fund money on a dang senor

 

best way to get one would be to see if u can find a junked up tC at like a junk yard or something... and pull an o2 sensor off of those.. im sure there are totaled tCs out there

 

LOL Same friggin thing happened to me when I installed my turbo kit. The secondary O2 sensor siezed in the s-pipe and it got stripped when I took it out. DON'T pay $300 for another one at Autozone! The cheapest I found a new one was just under $100. Even that was too expensive for me, so I had my friend's dad weld the sensor onto an antifouler and put that on my aftermarket s-pipe he he he. I still got a CEL, but I'm going to try another antifouler setup in time.

 

ha ha i guess it just happens to the best of us...

 

$299 is rape! I just called my local dealer and they have them (btw the one on the exhaust manifold is actually the A/f ratio sensor) and they quoted me $216..still not cheap but I'd rather pay that then $300 haha

 

juste weld the sensor on the header , i did that and works perfect and u don't need to spend a lot of money

 

If you weld the A:F sensor to the manifold you're pretty much stuck with it on there.

Leaving it off will cause a few problems
-Your car will use more gas [probably quite a bit if you have no sensor at all]
-Using lots of gas means you will damage up your cat sooner [the extra unburned fuel in the exhaust isn't good for the cat, and they're VERY expensive]
-You won't know if another problem pops up [unless you recheck your codes]
-You've got a nice little exhaust leak

I would suggest replacing it with either a Denso [Toyota] or NGK sensor.
Be careful if you look at universal sensors, it's not a regular O2 sensor.
Be careful next time you pull one, they can be a PITA as you found out. If it get's stuck try alternately loosening and tightening it, this will help break it free. Lube also helps, something like PB Blaster. Make sure you use antisieze if you put one back in.

 

air fuel sensors read the amount of oxygen in the atmosphere and change the fuel trims accordingly...

which means, without it the car goes into a default mode and dumps fuel into the car so it knows that nothing can go wrong.

like literally dumps fuel. hardcore dumps like i have a bucket and im dumping that into the intake.

you could give me the o2 sensor lol. i need one hahah

 

i put on a universal sensor but cel still on. i even put on the spark plug fouler but no dice there either so i guess the universal o2 sensor doesn't work! so dont buy one if ur looking to get it.

 

;)

It actually reacts to the amount of oxygen in the exhaust, not the atmosphere.

Also, it won't "hardcore dump" fuel, it's going to go into open loop [like when your at WOT]. It will definitely use more fuel, but it just reads directly from the fuel maps instead of adjusting based on the A:F sensor.

 

it takes the amount of o2 in the exhaust and compares it to the amount of oxygen in the atmosphere, hence 14 parts per million in exhaust to 7 parts per million in atmosphere

it dumps fuel according to the readings it gets from the MAF sensor, the crank sensor and the cam sensor it all reads those and compiles data and sets the fuel trims to what math says is the amount of fuel that should be dumped into the intake.

would you like hte formula too?

i speak in layman's terms so people will understand whats going on....and so not to confuse them with this technician mumbo jumbo.

 

I got a Denso replacement O2 sensor from NAPA for $102.

 

BUT in essence, it will dump a crapload of fuel into the eng.

if it's not changing in real time than it has to add a buffer for when it DOES go lean for say WOT or a situation like that, hence dumping in more fuel than needed at one given time (idle, partial throttle)

 

how does it run, whats the part number? all that jazz please.

 

It's the exact same as the OEM one...so whatever part # is on that, is the part number I ordered. I just took my O2 sensor in to them and they ordered the exact same thing.

No problems with it, no codes.

 

hows it run though? my car is still poopy and i can't figure out why.

 

Runs perfectly. I had PTuning put the sensor in right before they tuned the car. Haven't had any hiccups, stalls, sputters, etc since.

Maybe it's time you got your car tuned lol.